Godolphin have yet another runner in Golden Slipper contention after Pin Sec recorded a big win in Sunday's Group Three Black Opal Stakes (1200m) at Canberra.

The daughter of Lonhro was sent around as a $3.90 third favourite in the feature two-year-old race, behind the Snowden pair of Rome ($2.80) and McLaren ($3.60).

Jason Collett settled Pin Sec midfield on the fence in the run, before pulling out to the centre of the track in the straight where she produced a nice turn of foot, sweeping home to beat Rome by four lengths. McLaren was a further 1.5L away in third.

Rated a $101 chance for the Golden Slipper prior to the race, she is now into $21 (TAB).

Collett said the filly still had plenty to learn given the Black Opal was just her second start.

"That was very good. She’s very raw. She’s still got a bit of growing up to do, but she did that pretty easily," Collett told Sky Thoroughbred Central.

Despite early Slipper favourite Tassort being ruled out due to injury, Godolphin still have an incredibly strong hand heading into the Group One at Rosehill on March 23.

Tenley ($6) holds joint favouritism with the Chris Waller-trained Yes Yes Yes ($6) after her win in the Reisling Stakes while Microphone ($8), Exhilarates ($11) and Lyre ($11) are high up in the market.

Godolphin have already won the Magic Millions (Exhilarates) and the Blue Diamond (Lyre) this season.